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$165+ Cheap flights from Pennsylvania to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Jul 25 — Aug 11
Sat 7/25
Sat 8/1
1 adult, Economy
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Cheap flight deals from Pennsylvania to Heathrow

Cheapest flights from Pennsylvania to Heathrow
Explore the most affordable flight options available from Pennsylvania to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.

This Mytrip deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:30 pm
JFK
-
LHR
2 stops19h 50m
Multiple Airlines
Tue 9/16:40 am
LHR
-
JFK
2 stops20h 25m
Multiple Airlines
Deal found 6/25$643
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:10 pm
JFK
-
LHR
1 stop16h 10m
Multiple Airlines
Mon 9/218:50 pm
LHR
-
JFK
1 stop30h 10m
Multiple Airlines
Deal found 6/25$644
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:30 pm
JFK
-
LHR
1 stop10h 25m
Icelandair
Wed 9/231:05 pm
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 6/25$645
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1611:10 pm
JFK
-
LHR
1 stop31h 45m
Icelandair
Tue 9/11:05 pm
LHR
-
JFK
1 stop14h 00m
Icelandair
Deal found 6/25$647
This Cheapflightsfares deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:00 pm
JFK
-
LHR
1 stop19h 40m
TAP AIR PORTUGAL
Sat 11/78:15 am
LHR
-
JFK
1 stop16h 50m
TAP AIR PORTUGAL
Deal found 6/25$648
This Cheapflightsfares deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:00 pm
JFK
-
LHR
1 stop11h 00m
Multiple Airlines
Thu 10/296:50 am
LHR
-
JFK
1 stop11h 30m
Multiple Airlines
Deal found 6/25$650
This Icelandair deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:25 pm
JFK
-
LHR
1 stop10h 25m
Icelandair
Wed 11/1812:15 pm
LHR
-
JFK
1 stop10h 45m
Icelandair
Deal found 6/25$651
This Icelandair deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:10 pm
JFK
-
LHR
1 stop16h 10m
Icelandair
Sat 10/179:25 pm
LHR
-
JFK
1 stop29h 40m
Icelandair
Deal found 6/25$653
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:10 pm
JFK
-
LHR
1 stop16h 10m
Multiple Airlines
Mon 9/76:50 am
LHR
-
JFK
1 stop11h 10m
Multiple Airlines
Deal found 6/25$654
This Mytrip deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:30 pm
JFK
-
LHR
1 stop10h 25m
Multiple Airlines
Fri 9/118:45 am
LHR
-
JFK
2 stops15h 35m
Multiple Airlines
Deal found 6/25$657
This FlightHub deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:05 pm
JFK
-
LHR
1 stop14h 40m
TAP AIR PORTUGAL
Mon 10/268:15 am
LHR
-
JFK
1 stop16h 50m
TAP AIR PORTUGAL
Deal found 6/25$658
This Mytrip deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:40 am
LGA
-
LHR
1 stop14h 50m
Multiple Airlines
Tue 8/257:40 am
LHR
-
LGA
2 stops14h 15m
Multiple Airlines
Deal found 6/25$676

Find flight deals from Pennsylvania to Heathrow

Keep the following information in mind while searching for Pennsylvania to Heathrow flight deals. Data was last updated June 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$644
(Kiwi.com)

One-way from

$165
(Virgin Atlantic)

Popular in

June

Cheapest in

September

Average price

$1,403

Good round-trip deal

$988 or less

Good one-way deal

$394 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
Search Deals
From Pennsylvania to London Heathrow
Search Deals
One-way flight from Pennsylvania to London Heathrow
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($292 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Pennsylvania to London Heathrow.
Search Deals
Price to beat on a one-way flight from Pennsylvania to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 8/10

6:55 pm-4:00 pm

1 stop16h 05m

London Heathrow

Mon 8/17

9:05 pm-3:40 pm

2 stops23h 35m

$783

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 9/9

6:40 pm-6:50 am

Nonstop7h 10m

London Heathrow

Wed 9/16

10:20 am-7:10 pm

1 stop13h 50m

$784

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 8/18

6:55 pm-4:25 pm

2 stops16h 30m

London Heathrow

Sat 8/29

5:30 pm-3:40 pm

2 stops27h 10m

$787

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 8/6

8:15 am-8:10 pm

Nonstop6h 55m

London Heathrow

Mon 8/24

11:45 am-5:05 pm

1 stop10h 20m

$790

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 8/17

2:55 pm-6:55 am

1 stop11h 00m

London Heathrow

Wed 8/26

9:30 am-2:37 pm

1 stop10h 07m

$797

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sun 9/6

9:30 am-9:20 pm

Nonstop6h 50m

London Heathrow

Tue 9/8

10:25 am-1:45 pm

Nonstop8h 20m

$797

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 8/21

8:15 am-8:10 pm

Nonstop6h 55m

London Heathrow

Wed 9/2

8:20 am-11:30 am

Nonstop8h 10m

$797

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 9/17

5:35 pm-5:55 am

Nonstop7h 20m

London Heathrow

Sun 10/18

7:45 am-10:30 am

Nonstop7h 45m

$797

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 8/15

5:25 pm-5:55 am

Nonstop7h 30m

London Heathrow

Sat 8/29

9:30 am-12:30 pm

Nonstop8h 00m

$797

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 7/20

4:25 pm-11:55 am

1 stop14h 30m

London Heathrow

Wed 8/19

7:25 am-6:45 pm

2 stops16h 20m

$799

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Pennsylvania to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Pennsylvania with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pennsylvania to London Heathrow Airport

What is the cheapest month to book a flight from Pennsylvania to London Heathrow Airport?

Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of $90). Flying from Pennsylvania to London Heathrow Airport in September is currently the most expensive (average of $1,863). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PA to LHR?

Find hourly flight availability from Pennsylvania to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 25, 2026.

When flying from Pennsylvania to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Pennsylvania to London Heathrow Airport

Explore weekly flight availability from Pennsylvania to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 25, 2026.

The most flights from USPA to LHR are scheduled on a Monday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost to fly round-trip from Pennsylvania to London Heathrow Airport?

How far ahead should I book a flight from Pennsylvania to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Pennsylvania to London Heathrow Airport, you should look to book at least 21 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Pennsylvania to London Heathrow Airport?

    Departing from Pennsylvania to London Heathrow Airport will take you 6h 55m. There are 3440 mi between Pennsylvania and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Pennsylvania to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as $172 on Icelandair. Other airlines that offer cheap prices include JetBlue from $174 and TAP AIR PORTUGAL from $198 one-way.

  • What are the most popular routes from Pennsylvania to London Heathrow Airport?

    Most travelers choose New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow or New York LaGuardia - London Heathrow when deciding on the best route from Pennsylvania to London Heathrow Airport.

  • What are the most reliable airlines from Pennsylvania to London Heathrow Airport?

    The top 3 most reliable airlines when flying from Pennsylvania to London Heathrow Airport are Malaysia Airlines (90%), American Airlines (86%) and Finnair (86%).

  • What are the cheapest flights from Pennsylvania to London Heathrow Airport?

    The cheapest flight price from Pennsylvania to London Heathrow Airport is $348. On average you can expect to pay $1,670. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for $158.

  • Can I find deals for flights from Pennsylvania to Heathrow that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Heathrow.

  • Can I find deals for business class flights from Pennsylvania to Heathrow?

    Yes. Cheapflights offers flight deals from Pennsylvania to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pennsylvania to London Heathrow Airport?

    Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of $90). Flying from Pennsylvania to London Heathrow Airport in September is currently the most expensive (average of $1,863). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Pennsylvania to Heathrow

Discover the top 10 airlines that operate flights from Pennsylvania to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$295Average$775FlexibilityNo cancel feeOn-time62%
Aer LingusCheapest$479Average$782FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$498Average$857FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$499Average$850FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$512Average$945FlexibilityNo cancel feeOn-time71%
FinnairCheapest$513Average$853FlexibilityNo cancel feeOn-time76%
DeltaCheapest$531Average$869FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$559Average$963FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$583Average$888FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$647Average$1,536FlexibilityNo cancel feeOn-time67%

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